57605772 has 54 divisors (see below), whose sum is σ = 156859668. Its totient is φ = 16406208.

The previous prime is 57605749. The next prime is 57605783. The reversal of 57605772 is 27750675.

It is a self number, because there is not a number n which added to its sum of digits gives 57605772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 183888 + ... + 184200.

Almost surely, 2^57605772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57605772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78429834).

57605772 is an abundant number, since it is smaller than the sum of its proper divisors (99253896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57605772 is a wasteful number, since it uses less digits than its factorization.

57605772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 102900, while the sum is 39.

The square root of 57605772 is about 7589.8466387668. The cubic root of 57605772 is about 386.2086534223.

The spelling of 57605772 in words is "fifty-seven million, six hundred five thousand, seven hundred seventy-two".